Quadrilaterals and Triangles

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Across
  1. 4. A triangle with two equal sides.
  2. 6. A triangle where all sides are equal.
  3. 7. A quadrilateral with opposite sides parallel and equal in length.
  4. 8. A parallelogram with four right angles and all sides equal.
Down
  1. 1. A parallelogram with all sides equal but angles not necessarily 90 degrees.
  2. 2. A triangle where all three sides are of different lengths.
  3. 3. A quadrilateral with opposite sides equal and four right angles.
  4. 5. In a rectangle, these are equal in length and bisect each other.